@article{oai:tsukuba.repo.nii.ac.jp:00045334,
 author = {初貝, 安弘 and Araki, Hiromu and Kariyado, Toshikaze and Fukui, Takahiro and Hatsugai, Yasuhiro},
 issue = {4},
 journal = {Journal of the Physical Society of Japan, Journal of the Physical Society of Japan},
 month = {Mar},
 note = {The entanglement Chern number, the Chern number for the entanglement Hamiltonian, is used to characterize the Kane–Mele model, which is a typical model of the quantum spin Hall phase with time-reversal symmetry. We first obtain the global phase diagram of the Kane–Mele model in terms of the entanglement spin Chern number, which is defined by using a spin subspace as a subspace to be traced out in preparing the entanglement Hamiltonian. We further demonstrate the effectiveness of the entanglement Chern number without time-reversal symmetry by extending the Kane–Mele model to include the Zeeman term. The numerical results confirm that the sum of the entanglement spin Chern number is equal to the Chern number.},
 pages = {43706--1-4},
 title = {Entanglement Chern Number of the Kane–Mele Model with Ferromagnetism},
 volume = {85},
 year = {2016}
}